Version 1.5.0
Metrics initial release
Enhancements:
- Synchronous metric instruments (counter, updowncounter, histogram)
- Metric exporters and readers: OtlpHttpMetricExporter, OtlpGrpcMetricExporter, PeriodicExportingMetricReader
- Partial support of View class for renaming metrics and customizing histogram bins
- MeterProvider (including saving and loading as a global instance)
- Full support of resources and attributes in all metric measurements
- New metrics example
- Bump up libmexclass to the latest version